import labmem.Queue.Queue;
import labmem.Queue.ArrayQueue;
import labmem.Queue.LoopQueue;
import labmem.Queue.LinkedListQueue;

import java.util.Random;

/**
 * 测试两种队列性能
 */
public class TestQueue {

    //测试使用q运行opCount个enqueue的dequeue操作所需要的时间，单位:秒
    private static double testQueue(Queue<Integer> q, int opCount) {

        long startTime = System.nanoTime();

        Random random = new Random();
        for (int i = 0; i < opCount; i++)
            q.enqueue(random.nextInt(Integer.MAX_VALUE));
        for (int i = 0; i < opCount; i++)
            q.dequeue();
        long endTime = System.nanoTime();
        return (endTime - startTime) / 1000000000.0;
    }

    public static void main(String[] args) {
        int opCount = 100000;

        ArrayQueue<Integer> arrayQueue = new ArrayQueue<Integer>();
        double time1 = testQueue(arrayQueue, opCount);
        System.out.println("ArrayQueue,time: " + time1 + "s");

        LoopQueue<Integer> loopQueue = new LoopQueue<Integer>();
        double time2 = testQueue(loopQueue, opCount);
        System.out.println("LoopQueue,time: " + time2 + "s");

        LinkedListQueue<Integer> linkedListQueue = new LinkedListQueue<Integer>();
        double time3 = testQueue(linkedListQueue, opCount);
        System.out.println("LinkedListQueue,time: " + time3 + "s");
    }
}
